CVE-2018-9275

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Source
https://cve.org/CVERecord?id=CVE-2018-9275
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-9275.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-9275
Downstream
Related
Published
2018-04-04T18:29:02Z
Modified
2026-07-08T12:28:53Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
Summary
[none]
Details

In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).

References

Affected packages

Git / github.com/yubico/yubico-pam

Affected ranges

Type
GIT
Repo
https://github.com/yubico/yubico-pam
Events
Introduced
f5363a207b14d46b86022e598399a31201164594
Last Affected
432d7c60a1f64bfd1ad05683392cec36c6bc8455
Fixed
0f6ceabab0a8849b47f67d727aa526c2656089ba
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:yubico:yubico_pam:*:*:*:*:*:yubico:*:*",
    "extracted_events":  [
        {
            "introduced":  "2.18"
        },
        {
            "last_affected":  "2.25"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

2.*
2.18
2.19
2.20
2.21
2.22
2.23
2.24
2.25

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-9275.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "226607563752128757887514930765907415801",
                "279701570390930019583909742435872770862",
                "308494850977619412175153327874514612777",
                "203417458892300943278019038761638732730"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2018-9275-73e96989",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba",
        "target":  {
            "file":  "util.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "119299559369141334615512022658670539382",
            "length":  1698
        },
        "id":  "CVE-2018-9275-fa157aba",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba",
        "target":  {
            "file":  "util.c",
            "function":  "check_user_token"
        }
    }
]
vanir_signatures_modified 
"2026-07-08T12:28:53Z"